Physiological Signal Detection and Electrical Stimulation System, Electrical Stimulation Device Thereof and Method Thereof

The technical field relates to a physiological signal detection and an electrical stimulation system, an electrical stimulation device thereof and a method thereof.

At present, in the medical treatment for human diseases or discomforts, electromyography devices are first used to measure the myoelectric signal of the human body. Different myoelectric signals respond to different physical conditions. Then, the doctor decides the treatment plan according to the electromyographic signal. However, such method requires the replacement of different equipment and is difficult to provide a comprehensive solution for home exercise training required by a clinical therapist and a patient.

According to an embodiment, a physiological signal detection and electrical stimulation system is provided. The physiological signal detection and electrical stimulation system includes a physiological signal processing unit, an electrical stimulation device and a processing device. The physiological signal processing unit is configured to generate a physiological signal. The electrical stimulation device includes N electrodes, a first circuit assembly and a second circuit assembly. N is a positive integer equal to or greater than 2. The first circuit assembly includes N first electrode switches and a first control module, the first electrode switches are coupled to the N electrodes respectively, and the first control module is coupled to the N first electrode switches. The second circuit assembly includes N second electrode switches and a second control module, N second electrode switches are coupled to the N electrodes respectively, and the second control module is coupled to the N second electrode switches. The processing device is electrically connected to the electrical stimulation device and the physiological signal processing unit, and configured to: control the N first electrode switches, the N second electrode switches, the first control module and the second control module to generate a current flowing along an electrical stimulation path according to the physiological signal. The N first electrode switches and the first control module share a contact point, and the N second electrode switches and the second control module share another contact point.

According to another embodiment, an electrical stimulation device is provided. The electrical stimulation device includes N electrodes, a first circuit assembly and a second circuit assembly. N is a positive integer equal to or greater than 2. The first circuit assembly includes N first electrode switches and a first control module, the N first electrode switches are coupled to the N electrodes respectively, and the first control module is coupled to the N first electrode switches. The second circuit assembly includes N second electrode switches and a second control module, the second electrode switches are coupled to the N electrodes respectively, and the second control module is coupled to the N second electrode switches. The N first electrode switches and the first control module share a contact point, and the N second electrode switches and the second control module share another contact point.

According to another embodiment, a physiological signal detection and electrical stimulation method is provided. The physiological signal detection and electrical stimulation method includes the following steps: generating a physiological signal by a physiological signal processing unit of a physiological signal detection and electrical stimulation system, wherein the physiological signal detection and electrical stimulation system further comprises an electrical stimulation device and a processing device, the electrical stimulation device comprises N electrodes, a first circuit assembly and a second circuit assembly, the first circuit assembly comprises N first electrode switches and a first control module, the second circuit assembly comprises N second electrode switches and a second control module, wherein N is a positive integer equal to or greater than 2, the N first electrode switches are coupled to the N electrodes respectively, the N second electrode switches are coupled to the N electrodes respectively, the first control module is coupled to the N first electrode switches, the second control module is coupled to the N second electrode switches, the N first electrode switches and the first control module share a contact point, the N second electrode switches and the second control module share another contact point, and the processing device is electrically connected to the electrical stimulation device and the physiological signal processing unit; and controlling the N first electrode switches, the N second electrode switches, the first control module and the second control module to generate a current flowing along an electrical stimulation path according to the physiological signal.

According to another embodiment, an electrical stimulation device is provided. The electrical stimulation device includes M circuit assemblies. M is a positive integer equal to or greater than 2, and each of the M circuit assemblies includes P electrodes, P electrode switches and a control module. P is a positive integer equal to or greater than 2. The P electrode switches are coupled to the P electrodes respectively. The control module is coupled to the P electrode switches. A current is allowed to be transmitted from at least one of the P electrodes of one of the M circuit assemblies to at least one of the P electrodes of at least one of the others of the M circuit assemblies.

In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically illustrated in order to simplify the drawing.

1 1 2 2 FIGS.A,B,A andB 1 FIG.A 1 FIG.B 1 FIG.A 2 2 FIGS.A andB 1 FIG.B 1 10 1 100 Referring to,illustrates a schematic diagram of a physiological signal detection and electrical stimulation productaccording to an embodiment of the present disclosure,illustrates a functional block diagram of a physiological signal detection and electrical stimulation systemof the physiological signal detection and electrical stimulation productin,illustrates a circuit schematic diagram of an electrical stimulation devicein.

1 1 FIGS.A andB 2 FIG.A 1 2 2 2 2 2 2 1 10 20 20 2 20 10 20 2 2 10 As illustrated in, the physiological signal detection and electrical stimulation productis, for example, a wearable product, which may be disposed on a living body (or an organism)(the living bodyis illustrated in) to detect the physiological signal S of the living bodyand apply a current I to the living bodyfor electrically stimulating the living body. The living bodyis, for example, a human body. The physiological signal detection and electrical stimulation productincludes a physiological signal detection and electrical stimulation systemand a carrier. The carrieris made of, for example, fibers (e.g., elastic fibers), cloth, compounds, or other materials (e.g., woven) suitable for contacting the living body. Furthermore, the carrieris, for example, kneepad, sock, clothing, pant, neckband, glove, etc. The physiological signal detection and electrical stimulation systemmay be disposed inside or outside the carrierand may contact the living bodyto detect the physiological signal S of the living body. In an embodiment, the physiological signal detection and electrical stimulation systemmay be worn on the human body's knee, ankle, wrist, neck, waist, or other part that require electrical stimulation.

1 1 FIGS.A andB 2 FIG.A 10 11 12 100 12 10 1 11 100 11 2 2 12 100 11 100 2 12 11 As illustrated in, the physiological signal detection and electrical stimulation systemincludes a physiological signal processing unit, a processing deviceand an electrical stimulation device. In an embodiment, the processing devicemay be disposed outside the physiological signal detection and electrical stimulation systemor outside the physiological signal detection and electrical stimulation product, and communicate with the physiological signal processing unitand the electrical stimulation devicethrough a wired communication technology or a wireless communication technology. The physiological signal processing unitmay detect the physiological information of the living body(the living bodyis illustrated in), and accordingly generate the physiological signal S, such as a myoelectric signal. The processing deviceis electrically connected to the electrical stimulation deviceand the physiological signal processing unitand may control the electrical stimulation deviceto generate the current I according to the physiological signal S for electrically stimulating the living body. In addition, the processing deviceand the physiological signal processing unitwhich include at least one physical circuit are, for example, semiconductor wafers or semiconductor packages formed by a semiconductor process.

2 2 FIGS.A andB 100 1 2 1 110 2 120 110 120 12 110 120 110 120 10 1 N 1_1 1_N 2_1 2_N 1_1 1_N 1 N 2_1 2_N 1 N 1_1 1_N 2_1 2_N 1_1 1_N 2_1 2_N 1_1 1_N 2_1 2_N As illustrated in, the electrical stimulation deviceincludes, for example, an electrical stimulation circuit. The electrical stimulation circuit includes N electrodes Eto E, a first circuit assembly Cand a second circuit assembly C. The first circuit assembly Cincludes N first electrode switches ESto ESand a first control module. The second circuit assembly Cincludes N second electrode switches ESto ESand a second control module. N is a positive integer equal to or greater than 2. N first electrode switches ESto ESare coupled to N electrodes Eto Erespectively. N second electrode switches ESto ESare coupled to N electrodes Eto Erespectively. The N first electrode switches ESto ESshare a contact point a with the first control module, and the N second electrode switches ESto ESshare a contact point b with the second control module. The processing deviceis configured to control the action modes of the N first electrode switches ESto ES, the N second electrode switches ESto ES, the first control moduleand the second control moduleaccording to the physiological signal S, so as to generate the current I flowing along an electrical stimulation path. As a result, by controlling the action modes of the N first electrode switches ESto ES, the N second electrode switches ESto ES, the first control moduleand the second control module, the path of the current I may be controlled to obtain the desired electrical stimulation effect. In addition, in the present embodiment, the detection of physiological signals and the application of electrical stimulation may be integrated into the same device (for example, the physiological signal detection and electrical stimulation system), thereby increasing the convenience of use.

2 2 FIGS.A andB 1 N 2 2 As illustrated in, the N electrodes Eto Emay be adjacent to or in contact with the living body, so that the current I may stimulate the living bodythrough the electrodes.

1 2 100 100 1 N 1 N In an embodiment, the first circuit assembly Cis, for example, a first H half-bridge circuit, and the second circuit assembly Cis, for example, a second H half-bridge circuit, wherein the first H half-bridge circuit and the second H half-bridge circuit constitute an H-bridge circuit set. Although the electrical stimulation devicein the embodiment of the present disclosure uses an H-bridge circuit set as an example, in other embodiments, the electrical stimulation devicemay include M H half-bridge circuits, wherein M is, for example, a positive integer equal to or greater than 2, and at least one of the electrodes Eto Eof one of the M H half-bridge circuits may be connected in series or in parallel with at least one of the electrodes Eto Eof another of the M H half-bridge circuits.

2 2 FIGS.A andB 1 2 11 100 11 100 1 N 1 N 1_1 1_N 2_1 2_N 1 N 1 N As illustrated in, the first circuit assembly Cand the second circuit assembly Cshare N electrodes Eto E. The half-bridge circuit set at least includes N electrodes Eto Eand 2N electrode switches (i.e., N first electrode switches ESto ESand N second electrode switches ESto ES). In addition, the aforementioned physiological signal processing unitand the electrical stimulation devicemay also share at least one of the N electrodes Eto E, or the detection electrodes of the physiological signal processing unitand the electrodes Eto Eof the electrical stimulation devicemay be separately disposed (i.e. do not share the electrode).

2 2 FIGS.A andB 1_1 1_N 1 N 2_1 2_N 1 N 1 1_1 2_1 2 1_2 2_2 N 1_N 2_N n 1_n 2_n n As illustrated in, the first electrode switches ESto ESare coupled to the N electrodes Eto Erespectively, and the second electrode switches ESto ESare coupled to the N electrodes Eto Erespectively. For example, the electrode Eis coupled to the first electrode switch ESand the second electrode ES, the electrode Eis coupled to the first electrode switch ESand the second electrode switch ES, . . . , and so on, the electrode Eis coupled to the first electrode switch ESand the second electrode switch ES. In an embodiment, the two position points of the electrode Eare respectively coupled to the first electrode switch ESand the second electrode switch ES, and the two position points are respectively located on two opposite sides, two adjacent sides, or the same side of the electrode E.

2 2 FIGS.A andB 110 1 2 111 112 111 1 112 2 111 1 112 2 120 3 4 121 122 121 3 122 4 121 3 122 4 As illustrated in, the first control moduleincludes a first switch SW, a second switch SW, a first driving circuitand a second driving circuit. The first driving circuitis electrically connected to the first switch SW, and the second driving circuitis electrically connected to the second switch SW. The first driving circuitmay control the first switch SWto be turned on or off, and the second driving circuitmay control the second switch SWto be turned on or off for controlling the current path. The second control moduleincludes a third switch SW, a fourth switch SW, a third driving circuitand a fourth driving circuit. The third driving circuitis electrically connected to the third switch SW, and the fourth driving circuitis electrically connected to the fourth switch SW. The third driving circuitmay control the third switch SWto be turned on or off, and the fourth driving circuitmay control the fourth switch SWto be turned on or off for controlling the current path.

2 2 FIGS.A andB 2 4 110 120 1 110 3 120 1 1 2 2 3 3 4 4 1_1 1_N 1_1 1_N 2_1 2_N 2_1 2_N As illustrated in, the second switch SWand the fourth switch SWmay be electrically connected to a ground potential G. The voltage source Vs may be supplied to the first control moduleand the second control module. For example, the voltage source Vs is electrically connected to the first switch SWof the first control moduleand the third switch SWof the second control module. When the first switch SWis turned on, the voltage source Vs may apply a voltage to the corresponding electrode through the first switch SWand at least one conductive one of the first electrode switches ESto ESthat is turned on. When the second switch SWis turned on, the ground potential G may be applied to the corresponding electrode through the second switch SWand at least one conductive one of the first electrode switches ESto ESthat is turned on. When the third switch SWis turned on, the voltage source Vs may apply the voltage to the corresponding electrode through the third switch SWand at least one conductive one of the second electrode switches ESto ESthat is turned on. When the fourth switch SWis turned on, the ground potential G may be applied to the corresponding electrode through the fourth switch SWand at least one conductive one of the second electrode switches ESto ESthat is turned on.

2 2 FIGS.A andB 1 1 2 2 110 111 112 110 1 2 120 121 122 120 3 4 As illustrated in, a first input port Pis coupled to the first control module, for example, the first driving circuitand the second driving circuitof the first control module. By controlling the voltage of the first input port P, the first switch SWmay be controlled to be on or off, and the second switch SWmay be controlled to be on or off. The second input port Pis coupled to the second control module, for example, the third driving circuitand the fourth driving circuitof the second control module. By controlling the voltage of the second input port P, the third switch SWmay be controlled to be turned on or off, and the fourth switch SWmay be controlled to be turned on or off.

2 2 FIGS.A andB 111 1111 1112 1111 1112 1 1112 112 1121 1122 1121 1122 2 1122 121 1211 1212 1211 1212 3 1212 122 1221 1222 1221 1222 4 1222 As illustrated in, the first driving circuitincludes a first non-inverterand a first driver, wherein the first non-inverteris electrically connected to the first driver. The first switch SWis, for example, a transistor, and the first driveris, for example, a gate driver. The second driving circuitincludes a first inverterand a second driver, wherein the first inverteris electrically connected to the second driver. The second switch SWis, for example, a transistor, and the second driveris, for example, a gate driver. The third driving circuitincludes a second non-inverterand a third driver, wherein the second non-inverteris electrically connected to the third driver. The third switch SWis, for example, a transistor, and the third driveris, for example, a gate driver. The fourth driving circuitincludes a second inverterand a fourth driver, wherein the second inverteris electrically connected to the fourth driver. The fourth switch SWis, for example, a transistor, and the fourth driveris, for example, a gate driver.

12 1 2 1 2 1 2 3 4 3 4 1 2 1 2 1 2 1 2 The processing deviceis further configured to control one of the first switch SWand the second switch SWto turn on and the other of the first switch SWand the second switch SWto turn off by using one of the first level voltage Vand the second level voltage V; and control one of the third switch SWand the fourth switch SWto turn on and the other of the third switch SWand the fourth switch SWto turn off by using the other of the first level voltage Vand the second level voltage V. The first level voltage Vis different from the second level voltage V. In the present embodiment, the first level voltage Vis higher than the second level voltage V, that is, the first level voltage Vhas a high potential, and the second level voltage Vhas a low potential.

2 FIG.A 12 1 1111 1112 1 1112 1 1121 1122 1 1122 2 12 2 1211 1212 2 1212 3 1221 1222 2 1222 4 1 4 1 2 1_1 1_N 2_1 2_N For example, as illustrated in, the processing deviceinputs the first input port Pwith the first level voltage V, and the first non-inverteroutputs a control signal to the first driveraccording to the first level voltage V, the first drivercontrols the first switch SWto turn on, and the first inverteroutputs the control signal to the second driveraccording to the first level voltage V, and the second drivercontrols the second switch SWto turn off. The processing deviceinputs the second input port Pwith the second level voltage V. The second non-inverteroutputs the control signal to the third driveraccording to the second level voltage V, accordingly the third drivercontrols the third switch SWto turn off, and the second inverteroutputs the control signal to the fourth driveraccording to the second level voltage V, and the fourth drivercontrols the fourth switch SWto turn on accordingly. As a result, the voltage source Vs may form an electrical stimulation path (from high potential to low potential) through sequentially the first switch SW, at least one conductive one of the first electrode switches ESto ESthat is turned on, the corresponding electrode, at least one conductive one of the second electrode switches ESto ESthat is turned on and the fourth switch SW.

2 FIG.A 1 2 4 2 1_1 1 2 2_2 In the present embodiment, as illustrated in, the voltage source Vs forms an electrical stimulation path through sequentially the first switch SW, the first electrode switch ES(the conductive one), the electrode E, the living body(which is in contact with the electrode), the electrode E, the second electrode switch ES(the conductive one) and the fourth switch SW, and the current I generated by the voltage source Vs may stimulate the tissue of the living body.

2 FIG.B 12 2 1111 1112 2 1112 1 1121 1122 2 1122 2 12 1 1211 1212 1 1212 3 1221 1222 1 1222 4 3 2 1 2 2_1 2_N 1_1 1_N For another example, as illustrated in, the processing deviceinputs the first input port Pwith the second level voltage V, accordingly the first non-inverteroutputs the control signal to the first driveraccording to the second level voltage V, the first drivercontrols the first switch SWto turn off, the first inverteroutputs the control signal to the second driveraccording to the second level voltage V, and the second drivercontrols the second switch SWto turn on. The processing deviceinputs the second input port Pwith first level voltage V, accordingly the second non-inverteroutputs the control signal to the third driveraccording to the first level voltage V, the third drivercontrols the third switch SWto turn on, the second inverteroutputs the control signal to the fourth driveraccording to the first level voltage V, and the fourth drivercontrols the fourth switch SWto turn off. As a result, the voltage source Vs may form an electrical stimulation path (from high potential to low potential) through sequentially the third switch SW, at least one conductive one of the second electrode switches ESto ESthat is turned on, the corresponding electrode, at least one conductive one of the first electrode switches ESto ESthat is turned on and the second switch SW.

2 FIG.B 3 2 2 2 2_1 1 2 1_2 In this embodiment, as illustrated in, the voltage source Vs forms an electrical stimulation path through sequentially the third switch SW, the second electrode switch ES(the conductive one), the electrode E, the living body(which is in contact with the electrode), the electrode E, the first electrode switch ES(the conductive one) and the second switch SW, the current I generated by the voltage source Vs may stimulate the tissue of the living body.

1 2 1 2 111 112 3 4 3 4 121 122 100 111 112 121 122 12 1 2 3 4 In another embodiment, as long as one of the first switch SWand the second switch SWmay be controlled to be turned on and the other of the first switch SWand the second switch SWis turned off, the embodiment of the present disclosure is not limited to the circuit designs of the first driving circuitand the second driving circuit. Similarly, as long as one of the third switch SWand the fourth switch SWmay be controlled to be turned on and the other of the third switch SWand the fourth switch SWto be turned off, the embodiment of the present disclosure does not limit the circuit designs of the third driving circuitand the fourth driving circuit. In other embodiments, the electrical stimulation devicemay omit the first driving circuit, the second driving circuit, the third driving circuitand the fourth driving circuit, and the processing devicemay independently control the first switch SWto turn on or off, the second switch SWto turn on or off, the third switch SWto turn on or off and the fourth switch SWto turn on or off.

12 1_1 1_N 2_1 2_N 1_1 1_N 2_1 2_N In addition, the processing deviceis electrically connected to the first electrode switches ESto ESand the second electrode switches ESto ESto control at least one of the first electrode switches ESto ESto be turned on and at least one of the second electrode switches ESto ESto be turned on for forming the electrical stimulation path. By turning on different first electrode switches and/or turning on different second electrode switches, different electrical stimulation paths and/or a plurality of the combinations of the electrical stimulation paths may be obtained. By turning on different numbers of the first electrode switches and/or turning on different numbers of the second electrode switches, different electrical stimulation paths and/or a plurality of the combinations of the electrical stimulation paths may also be obtained. Further examples are given below.

3 3 FIGS.A toB 3 FIG.A 3 FIG.B Referring to,illustrates a schematic diagram of a first electrical stimulation mode according to an embodiment of the present disclosure, andillustrates a schematic diagram of a second electrical stimulation mode according to an embodiment of the present disclosure.

3 FIG.A 12 12 1 2 1_1 1_N 1_1 1_N 2_1 2_N 2_1 2_N 1 2 1 N 1 N As illustrated in, in the first electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols one of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESto be turned off and controls one of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and the processing deviceinputs the first input port Pwith the first standard voltage V, and inputs the second input port Pwith the second standard voltage V, so that the current may sequentially travel through one of the electrodes Eto Eand another of the electrodes Eto E(i.e., one electrode to one electrode) along a direction of the high potential to low potential direction. As a result, six electrical stimulation paths may be obtained.

3 FIG.B 12 12 2 1 1_1 1_N 1_1 1_N 2_1 2_N 2_1 2_N 1 2 1 N 1 N As illustrated in, in the second electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols one of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESto be turned off, and controls one of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and the processing deviceinputs the second level voltage Vto the first input port Pand inputs the first level voltage Vinto the second input port P, so that the current may sequentially travel through one of the electrodes Eto Eand another of the electrodes Eto Ealong a direction of the high potential to low potential direction (i.e., one electrode to one electrode). As a result, six electrical stimulation paths may be obtained.

4 4 FIGS.A toB 4 FIG.A 4 FIG.B Referring to,illustrates a schematic diagram of a third electrical stimulation mode according to an embodiment of the present disclosure, andillustrates a schematic diagram of a fourth electrical stimulation mode according to an embodiment of the present disclosure.

4 FIG.A 12 12 1 2 1_1 1_N 1_1 1_N 2_1 2_N 2_1 2_N 1 2 1 N 1 N As illustrated in, in the third electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols one of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESto be turned off, and controls two of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and the processing deviceinputs the first level voltage Vto the first input port Pand inputs the second level voltage Vinto the second input port P, so that the current may sequentially travel through one of the electrodes Eto Eand another two of the electrodes Eto Ealong a direction of the high potential to low potential direction (i.e., one electrode to two electrodes). As a result, twelve electrical stimulation paths may be obtained.

4 FIG.B 12 12 1 2 2_1 2_N 2_1 2_N 1_1 1_N 1_1 1_N 2 1 1 N 1 N As illustrated in, in the fourth electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols two of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and controls one of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESto be turned off, and the processing deviceinputs the first standard voltage Vto the second input port Pand inputs the second level voltage Vto the first input port P, so that the current may sequentially travel through two of the electrodes Eto Eand another of the electrodes Eto Ealong a direction of the high potential to low potential direction (i.e., one electrode to two electrodes). As a result, twelve electrical stimulation paths may be obtained.

5 5 FIGS.A toB 5 FIG.A 5 FIG.B Referring to,illustrates a schematic diagram of a fifth electrical stimulation mode according to an embodiment of the present disclosure, andillustrates a schematic diagram of a sixth electrical stimulation mode according to an embodiment of the present disclosure.

5 FIG.A 12 12 1 2 1_1 1_N 1_1 1_N 2_1 2_N 2_1 2_N 1 2 1 N 1 N As illustrated in, in the fifth electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols one of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESto be turned off, and controls three of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and the processing deviceinputs the first level voltage Vto the first input port Pand inputs the second level voltage Vto the second input port P, so that the current may sequentially travel through one of the electrodes Eto Eand another three of the electrodes Eto Ealong a direction of the high potential to low potential direction (i.e., one electrode to three electrodes). As a result, four electrical stimulation paths may be obtained.

5 FIG.B 12 12 1 2 2_1 2_N 2_1 2_N 1_1 1_N 1_1 1_N 2 1 1 N 1 N As illustrated in, in the sixth electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols three of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and controls one of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESare turned off, and the processing deviceinputs the first standard voltage Vto the second input port Pand inputs the second level voltage Vto the first input port P, so that the current may sequentially travel through three of the electrodes Eto Eand another of the electrodes Eto Ealong a direction of the high potential to low potential direction (i.e., one electrode to three electrodes). As a result, four electrical stimulation paths may be obtained.

6 6 FIGS.A toB 6 FIG.A 6 FIG.B Referring to,illustrates a schematic diagram of a seventh electrical stimulation mode according to an embodiment of the present disclosure, andillustrates a schematic diagram of an eighth electrical stimulation mode according to an embodiment of the present disclosure.

6 FIG.A 12 12 1 2 1_1 1_N 1_1 1_N 2_1 2_N 2_1 2_N 1 2 1 N 1 N As illustrated in, in the seventh electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols two of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESto be turned off, and controls two of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and the processing deviceinputs the first level voltage Vto the first input port Pand inputs the second level voltage Vto the second input port P, so that the current may sequentially travel through two of the electrodes Eto Eand another two of the electrodes Eto Ealong a direction of the high potential to low potential direction (i.e., two electrodes to two electrodes). As a result, three electrical stimulation paths may be obtained.

6 FIG.B 12 12 1 2 2_1 2_N 2_1 2_N 1_1 1_N 1_1 1_N 2 1 1 N 1 N As illustrated in, in the eighth electrical stimulation mode, taking 4 electrodes (N is equal to 4) as an example, the processing devicecontrols two of the second electrode switches ESto ESto be turned on and the others of the second electrode switches ESto ESto be turned off, and controls two of the first electrode switches ESto ESto be turned on and the others of the first electrode switches ESto ESto be turned off, and the processing deviceinputs the first level voltage Vto the second input port Pand inputs the second level voltage Vto the first input port P, so that the current may sequentially travel through two of the electrodes Eto Eand another two of the electrodes Eto Ealong a direction of the high potential to low potential direction (i.e., two electrodes to two electrodes). As a result, three electrical stimulation paths may be obtained.

3 6 FIGS.A toB 1_i 1_1 1_N 2_j 2_1 2_N 1 N 1 N 1 N 1 N 1 N 100 100 The electrical stimulation path of the embodiment of the present disclosure is not limited by. By switching the first electrode switches ESof the first electrode switches ESto ESand switching the second electrode switches ESof the second electrode switches ESto ES, a variety of different electrical stimulation paths may be obtained, wherein the subscripts i and j are positive integers between 1 and N, but i is not equal to j. In other words, the electrical stimulation deviceof the embodiment of the present disclosure may obtain a variety of different electrical stimulation paths and/or obtain a mesh (or surface-shaped) electrical stimulation path (for example, the paths covers a surface area) by using a small number of electrodes. Furthermore, in case of obtaining the same number of permutations and combinations of electrical stimulation paths, the electrical stimulation deviceof the present embodiment only requires 4 electrodes, while the conventional electrical stimulation device requires 12 electrodes for obtaining the same number of permutations and combinations. In addition, in an embodiment, the N electrodes Eto Emay be disposed corresponding to at least one corner and/or at least one side of a polygon, wherein the polygon is, for example, a triangle, a square, a rectangle, a pentagon or other types of polygons; or N electrodes Eto Emay be arranged corresponding to a perimeter of a circle; or the N electrodes Eto Emay be arranged corresponding to a perimeter of an ellipse; or the N electrodes Eto Emay be arranged in an L×K array shape, wherein L and K are positive integers equal to or greater than 2, and L and K may be equal or different; or the N electrodes Eto Emay be arranged along a straight line, a curve or a combination thereof. Different electrode arrangements may obtain different electrical stimulation distribution areas.

10 12 12 In an embodiment, electrical stimulation schemes corresponding to different physiological signals may be different, and multiple electrical stimulation schemes may be pre-stored in the physiological signal detection and electrical stimulation system, such as the processing device. The processing devicemay determine the corresponding electrical stimulation plan based on the physiological signal S. An electrical stimulation protocol may include at least one electrical stimulation sequence. In an electrical stimulation sequence, the current lasts for an electrical stimulation time by using a pulse width, an electrical stimulation frequency and an electrical stimulation intensity along an electrical stimulation path, and the current may stimulate along a one-way path or a bidirectional path. In an embodiment, the electrical stimulation time may range between, for example, 1 second and 10 seconds, the pulse width may range between, for example, 10 microseconds and 500 microseconds, and the electrical stimulation frequency may range between, for example, between 10 Hz and 400 Hz., and the electrical stimulation intensity may range between, for example, between 0 and 100 milliamperes, but the foregoing numerical range is not intended to limit the embodiments of the present disclosure. In different two electrical stimulation timing sequences, at least one of the pulse width, the electrical stimulation frequency, the electrical stimulation intensity, the electrical stimulation path, the electrical stimulation time and the one-way electrical stimulation and/or the bidirectional electrical stimulation may be different.

7 FIG. 7 FIG. 200 Referring to,illustrates a circuit schematic diagram of an electrical stimulation deviceaccording to another embodiment of the present disclosure.

7 FIG. 1 FIG.B 200 1 2 230 240 1 110 2 120 12 110 120 110 120 110 120 1 N 1_1 1_N 2_1 2_N 1_1 1_N 1 N 2_1 2_N 1 N 1_1 1_N 2_1 2_N 1_1 1_N 2_1 2_N 1_1 1_N 2_1 2_N As illustrated in, the electrical stimulation deviceincludes an electrical stimulation circuit. The electrical stimulation circuit includes N electrodes Eto E, the first circuit assembly C, the second circuit assembly C, a first current sourceand a second current source. The first circuit assembly Cincludes N first electrode switches ESto ESand a first control module. The second circuit assembly Cincludes N second electrode switches ESto ESand the second control module. N is a positive integer equal to or greater than 2. N first electrode switches ESto ESare coupled to N electrodes Eto Erespectively. N second electrode switches ESto ESare coupled to N electrodes Eto Erespectively. The processing deviceis configured to determine the action modes of the N first electrode switches ESto ES, the N second electrode switches ESto ES, the first control moduleand the control moduleaccording to the physiological signal S (the physiological signal S is illustrated in). The N first electrode switches ESto ESshare the contact point a with the first control module, and the N second electrode switches ESto ESshare the contact point b with the second control module. As a result, through the action modes of the N first electrode switches ESto ES, the N second electrode switches ESto ES, the first control moduleand the second control module, the current path may be controlled to obtain the expected electrical stimulation effects.

100 200 230 240 230 2 240 4 Different from the electrical stimulation device, the electrical stimulation devicefurther includes a first current sourceand a second current source. The first current sourceis coupled to the ground potential G and the second switch SW, and the second current sourceis coupled to the ground potential G and the fourth switch SW. The current source may provide the stable current output for providing the better electrical stimulation effect (current stimulation effect on the living body is more significantly than voltage stimulation effect).

8 FIG. 8 FIG. 300 Referring to,illustrates a circuit schematic diagram of an electrical stimulation deviceaccording to another embodiment of the present disclosure.

8 FIG. 300 1 110 120 1 M m m_1 m_P m_1 m_P 1 1_1 1 1_1 1_P M M_1 M_P M_1 M_P As illustrated in, the electrical stimulation deviceincludes an electrical stimulation circuit. The electrical stimulation circuit includes M circuit assemblies C′to C′, wherein M is, for example, a positive integer equal to or greater than 2. The circuit assembly C′includes P electrode switches ESto ES, a control module Dm and P electrodes Eto E, wherein m is a positive integer between 1 and M, P is a positive integer greater than or equal to 2, and the value of P may be less than, equal to or greater than the aforementioned value of N. In case of m being equal to 1, the circuit assembly C′includes P electrode switches ESto ES_P, the control module Dand P electrodes Eto E. In case of m being equal to M, the circuit assembly C′includes P electrode switches ESto ES, the control module DM and P electrodes Eto E. In addition, each control module Dm includes the structures the same as or similar to that of the aforementioned first control moduleor second control module, and they will not be repeated again here.

1 m 1 m m_1 m_P 1 m m_1 m_P 1 M 10 10 8 FIG. In an embodiment, current may be transmitted from one of the circuit assemblies C′to C′to at least one of the others of the circuit assemblies C′to C′through the living body(not illustrated in). For example, current may be transmitted from at least one of the P electrodes Eto Eof one of the circuit assemblies C′to C′to at least one of the P electrodes Eto Eof at least one of the others of the circuit assemblies C′to C′through the living body.

m_1 m_P 1 M m_1 m_P 1 M In an embodiment, two connected circuit assemblies may share a common electrode. For example, at least one of the P electrodes Eto Eof one of the circuit assemblies C′to C′and at least one of the P electrodes Eto Eof at least one of the others of the circuit assemblies C′to C′are the same electrode (i.e., a common electrode), and accordingly it may reduce the number of electrodes. In addition, a plurality of the current paths may travel from one electrode to a plurality of the electrodes (from the high potential to the low potential), or a plurality of the current paths may travel from a plurality of the electrodes to a plurality of the electrodes (from the high potential to the low potential), or a plurality of the current paths may travel from a plurality of the electrodes to one electrode (from the high potential to the low potential) to form a mesh current path of arbitrary combination.

In summary, a physiological signal detection and electrical stimulation system is provided according to an embodiment of the present disclosure, its electrical stimulation device and method and physiological signal detection and electrical stimulation system may detect the physiological signals of the living body and apply the corresponding electrical stimulation respond to physiological signals based on the physiological signals. The detection of the physiological signals and the application of the electrical stimulation are integrated into the same physiological signal detection and electrical stimulation system, which is a complete solution that may meet the needs of clinical therapists and patients for home exercise training. In addition, the electrical stimulation device includes two circuit assemblies, and the two circuit assemblies share at least one electrode. As a result, the electrical stimulation device may obtain a variety of different electrical stimulation paths and/or obtain a mesh (or surface) electrical stimulation path (for example, the path covers an area) uses a few electrodes. In an embodiment, the circuit assembly is, for example, an H half-bridge circuit.